{"kind":"user","text":"NIST Statistical Reference Datasets, univariate summary statistics, problem NumAcc1: 3 constructed values: large 8-digit integers that differ only in the last digit. NIST uses this data set to test the accuracy of summary statistics calculations. Dataset d holds the 3 observations in column y. Compute the sample mean of y and the sample standard deviation of y (denominator n \u2212 1)."}